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单词 spectroscopic binaries
例句
原声例句
Crash Course 天文篇

These kinds of stars are called SPECTROSCOPIC BINARIES.

这类恒星被称为分光双星。

Crash Course 天文篇

Even better: Alcor is a spectroscopic binary, too!

开阳伴星也是分光双星!

Crash Course 天文篇

In even a small telescope you can see that Mizar is actually a visual binary… but it turns out that both of those two stars making up Mizar are actually SPECTROSCOPIC binaries, too.

即使是用一个小望远镜,你也可以看到开阳星实际上是目视双星… … 但事实证明,组成开阳星的这两颗恒星其实也是分光双星。

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